WO2018174633A2 - Procédé d'émission ou de réception de signal entre un terminal et une station de base dans un système de communication sans fil, et dispositif le prenant en charge - Google Patents

Procédé d'émission ou de réception de signal entre un terminal et une station de base dans un système de communication sans fil, et dispositif le prenant en charge Download PDF

Info

Publication number
WO2018174633A2
WO2018174633A2 PCT/KR2018/003431 KR2018003431W WO2018174633A2 WO 2018174633 A2 WO2018174633 A2 WO 2018174633A2 KR 2018003431 W KR2018003431 W KR 2018003431W WO 2018174633 A2 WO2018174633 A2 WO 2018174633A2
Authority
WO
WIPO (PCT)
Prior art keywords
sample
signal
terminal
base station
data
Prior art date
Application number
PCT/KR2018/003431
Other languages
English (en)
Korean (ko)
Other versions
WO2018174633A3 (fr
Inventor
박한준
박창환
양석철
김선욱
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to EP18772023.0A priority Critical patent/EP3471323B1/fr
Priority to JP2019530413A priority patent/JP6882479B2/ja
Priority to US16/065,734 priority patent/US11522651B2/en
Priority to CN201880016214.4A priority patent/CN110383742B/zh
Priority to KR1020187013764A priority patent/KR101944836B1/ko
Priority to KR1020197002531A priority patent/KR102060072B1/ko
Publication of WO2018174633A2 publication Critical patent/WO2018174633A2/fr
Publication of WO2018174633A3 publication Critical patent/WO2018174633A3/fr
Priority to US17/994,891 priority patent/US11882068B2/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • the following description relates to a wireless communication system, and a method for transmitting and receiving a signal between a terminal and a base station in a wireless communication system and an apparatus supporting the same.
  • the following description includes a description of a specific signal transmission method applicable when the terminal transmits uplink control information and a reference signal together to the base station.
  • Wireless access systems are widely deployed to provide various kinds of communication services such as voice and data.
  • a wireless access system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmission power, etc.).
  • multiple access systems include code division multiple access (CDMA) systems, frequency division multiple access (FDMA) systems, time division multiple access (TDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, and single carrier frequency (SC-FDMA). division multiple access) system.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • Massive Machine Type Communications which connects multiple devices and objects to provide various services anytime, anywhere, is also being considered in next-generation communications.
  • MTC Massive Machine Type Communications
  • a communication system design considering a service / UE that is sensitive to reliability and latency is being considered.
  • An object of the present invention is to provide a method for transmitting and receiving a signal between a terminal and a base station in a wireless communication system and apparatuses for supporting the same.
  • an object of the present invention is to provide an efficient signal sample generation method and a signal transmission / reception method based on the same when the terminal simultaneously transmits a reference signal and data.
  • the present invention provides a signal transmission and reception method between a terminal and a base station in a wireless communication system and apparatuses for supporting the same.
  • a time axis sample of a reference signal (RS) and data mapped to one symbol is generated, wherein the time The axial sample consists of a first RS sample, a data sample, and a second RS sample in the time axis direction; And transmitting a signal generated by applying transform precoding to the generated time axis sample to the base station.
  • RS reference signal
  • a terminal for transmitting a signal to a base station in a wireless communication system, the terminal comprising: a transmitter; And a processor operatively coupled to the transmitter, wherein the processor is configured to generate a reference signal (RS) mapped to one symbol and a time axis sample for the data, wherein the time axis sample is a time axis.
  • RS reference signal
  • the processor is configured to transmit a signal generated by applying transform precoding to the generated time axis sample to the base station.
  • the data sample may be an uplink control information (UCI) sample.
  • UCI uplink control information
  • the first RS sample may be some samples included in the second RS sample.
  • the second RS sample may be some samples included in the first RS sample.
  • the conversion precoding may be a Discrete Fourier Transform (DFT) precoding for the generated time axis sample.
  • DFT Discrete Fourier Transform
  • a method for receiving a signal from a terminal by a base station in a wireless communication system comprising: receiving a signal from the terminal; Estimating a transmission channel by applying a Discrete Fourier Transform (DFT) operation to samples within a first time window of the received signals; Extracting data samples by compensating channel values for samples in a second time window of the received signals using the estimated transmission channel; And acquiring data information based on the extracted data sample.
  • DFT Discrete Fourier Transform
  • a base station performing a random access procedure with a terminal in a wireless communication system
  • the base station comprising: a receiving unit; And a processor operating in connection with the receiving unit, wherein the processor is configured to receive a signal from the terminal; Estimating a transmission channel by applying a Discrete Fourier Transform (DFT) operation to samples within a first time window of the received signals; Extracting data samples by compensating channel values for samples in a second time window of the received signals using the estimated transmission channel; And acquire data information based on the extracted data sample.
  • DFT Discrete Fourier Transform
  • a receiver for example, a base station
  • a transmitter for example, a terminal
  • 1 is a diagram illustrating a physical channel and a signal transmission method using the same.
  • FIG. 2 is a diagram illustrating an example of a structure of a radio frame.
  • 3 is a diagram illustrating a resource grid for a downlink slot.
  • FIG. 4 is a diagram illustrating an example of a structure of an uplink subframe.
  • 5 is a diagram illustrating an example of a structure of a downlink subframe.
  • FIG. 6 is a diagram illustrating a self-contained subframe structure applicable to the present invention.
  • FIG. 7 and 8 illustrate exemplary connection schemes of a TXRU and an antenna element.
  • FIG. 9 is a diagram illustrating a hybrid beamforming structure from a TXRU and a physical antenna perspective according to an example of the present invention.
  • FIG. 10 is a diagram briefly illustrating a beam sweeping operation of a synchronization signal and system information in a downlink (DL) transmission process according to an embodiment of the present invention.
  • FIG. 11 is a diagram illustrating a method of configuring a PUCCH according to an embodiment of the present invention.
  • FIG. 12 is a diagram illustrating an operation of receiving a signal for each of a plurality of paths.
  • FIG. 13 is a diagram illustrating an operation of copying the last two symbols of RS and arranging them behind M samples in the configuration of FIG. 12 before DFT precoding.
  • FIG. 14 is a diagram briefly showing the configuration of RS and Data for one OFDM symbol applicable to the present invention.
  • FIG. 15 is a diagram illustrating a form in which samples in an N-point DFT period are down-sampled according to the example of FIG. 13.
  • 16 is a diagram schematically illustrating a configuration of performing channel estimation through an RS signal according to an embodiment of the present invention.
  • 17 is a diagram schematically illustrating a configuration of performing channel estimation through an RS signal according to another embodiment of the present invention.
  • FIG. 18 is a diagram briefly illustrating a configuration in which a receiver receives a signal according to the present invention.
  • FIG. 19 is a diagram briefly showing a time axis signal generated according to an example of the present invention.
  • 20 is a diagram illustrating a configuration in which RS and data are divided on a frequency axis according to an example of the present invention.
  • 21 is a diagram briefly illustrating a signal transmission method of a terminal according to an embodiment of the present invention.
  • FIG. 22 is a diagram illustrating a configuration of a terminal and a base station in which the proposed embodiments can be implemented.
  • each component or feature may be considered to be optional unless otherwise stated.
  • Each component or feature may be embodied in a form that is not combined with other components or features.
  • some of the components and / or features may be combined to form an embodiment of the present invention.
  • the order of the operations described in the embodiments of the present invention may be changed. Some components or features of one embodiment may be included in another embodiment, or may be replaced with corresponding components or features of another embodiment.
  • the base station is meant as a terminal node of a network that directly communicates with a mobile station.
  • the specific operation described as performed by the base station in this document may be performed by an upper node of the base station in some cases.
  • various operations performed for communication with a mobile station in a network consisting of a plurality of network nodes including a base station may be performed by the base station or network nodes other than the base station.
  • the 'base station' is replaced by terms such as a fixed station, a Node B, an eNode B (eNB), a gNode B (gNB), an advanced base station (ABS), or an access point. Can be.
  • a terminal may be a user equipment (UE), a mobile station (MS), a subscriber station (SS), or a mobile subscriber station (MSS). It may be replaced with terms such as a mobile terminal or an advanced mobile station (AMS).
  • UE user equipment
  • MS mobile station
  • SS subscriber station
  • MSS mobile subscriber station
  • AMS advanced mobile station
  • the transmitting end refers to a fixed and / or mobile node that provides a data service or a voice service
  • the receiving end refers to a fixed and / or mobile node that receives a data service or a voice service. Therefore, in uplink, a mobile station may be a transmitting end and a base station may be a receiving end. Similarly, in downlink, a mobile station may be a receiving end and a base station may be a transmitting end.
  • Embodiments of the present invention may be supported by standard documents disclosed in at least one of wireless access systems IEEE 802.xx system, 3rd Generation Partnership Project (3GPP) system, 3GPP LTE system, 3GPP 5G NR system and 3GPP2 system
  • embodiments of the present invention include 3GPP TS 36.211, 3GPP TS 36.212, 3GPP TS 36.213, 3GPP TS 36.321, 3GPP TS 36.331, 3GPP TS 38.211, 3GPP TS 38.212, 3GPP TS 38.213, 3GPP TS 38.321 and 3GPP TS 38.331 documents
  • Transmission Opportunity Period may be used in the same meaning as the term transmission period, transmission burst (Tx burst) or RRP (Reserved Resource Period).
  • LBT process may be performed for the same purpose as a carrier sensing process, a clear channel assessment (CCA), and a channel access procedure (CAP) for determining whether a channel state is idle.
  • CCA clear channel assessment
  • CAP channel access procedure
  • 3GPP LTE / LTE-A system will be described as an example of a wireless access system in which embodiments of the present invention can be used.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • OFDMA orthogonal frequency division multiple access
  • SC-FDMA single carrier frequency division multiple access
  • CDMA may be implemented with a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000.
  • TDMA may be implemented with wireless technologies such as Global System for Mobile communications (GSM) / General Packet Radio Service (GPRS) / Enhanced Data Rates for GSM Evolution (EDGE).
  • GSM Global System for Mobile communications
  • GPRS General Packet Radio Service
  • EDGE Enhanced Data Rates for GSM Evolution
  • OFDMA may be implemented in a wireless technology such as IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802-20, Evolved UTRA (E-UTRA).
  • UTRA is part of the Universal Mobile Telecommunications System (UMTS).
  • 3GPP Long Term Evolution (LTE) is part of an Evolved UMTS (E-UMTS) using E-UTRA, and employs OFDMA in downlink and SC-FDMA in uplink.
  • LTE-A (Advanced) system is an improved system of the 3GPP LTE system.
  • embodiments of the present invention will be described based on the 3GPP LTE / LTE-A system, but can also be applied to IEEE 802.16e / m system and the like.
  • a terminal receives information from a base station through downlink (DL) and transmits information to the base station through uplink (UL).
  • the information transmitted and received by the base station and the terminal includes general data information and various control information, and various physical channels exist according to the type / use of the information they transmit and receive.
  • FIG. 1 is a diagram for explaining physical channels that can be used in embodiments of the present invention and a signal transmission method using the same.
  • the initial cell search operation such as synchronizing with the base station is performed in step S11.
  • the UE receives a Primary Synchronization Channel (P-SCH) and a Secondary Synchronization Channel (S-SCH) from the base station, synchronizes with the base station, and obtains information such as a cell ID.
  • P-SCH Primary Synchronization Channel
  • S-SCH Secondary Synchronization Channel
  • the terminal may receive a physical broadcast channel (PBCH) signal from the base station to obtain broadcast information in a cell.
  • PBCH physical broadcast channel
  • the terminal may receive a downlink reference signal (DL RS) in the initial cell search step to confirm the downlink channel state.
  • DL RS downlink reference signal
  • the UE After completing the initial cell search, the UE receives a physical downlink control channel (PDCCH) and a physical downlink control channel (PDSCH) according to the physical downlink control channel information in step S12. Specific system information can be obtained.
  • PDCCH physical downlink control channel
  • PDSCH physical downlink control channel
  • the terminal may perform a random access procedure as in steps S13 to S16 to complete the access to the base station.
  • the UE transmits a preamble through a physical random access channel (PRACH) (S13), a response message to the preamble through a physical downlink control channel and a corresponding physical downlink shared channel. Can be received (S14).
  • PRACH physical random access channel
  • the UE may perform contention resolution such as transmitting an additional physical random access channel signal (S15) and receiving a physical downlink control channel signal and a corresponding physical downlink shared channel signal (S16). Procedure).
  • the UE After performing the above-described procedure, the UE subsequently receives a physical downlink control channel signal and / or a physical downlink shared channel signal (S17) and a physical uplink shared channel (PUSCH) as a general uplink / downlink signal transmission procedure.
  • a transmission (Uplink Shared Channel) signal and / or a Physical Uplink Control Channel (PUCCH) signal may be transmitted (S18).
  • UCI uplink control information
  • HARQ-ACK / NACK Hybrid Automatic Repeat and reQuest Acknowledgement / Negative-ACK
  • SR Scheduling Request
  • CQI Channel Quality Indication
  • PMI Precoding Matrix Indication
  • RI Rank Indication
  • UCI is generally transmitted periodically through the PUCCH, but may be transmitted through the PUSCH when control information and traffic data should be transmitted at the same time.
  • the UCI may be aperiodically transmitted through the PUSCH by the request / instruction of the network.
  • FIG. 2 shows a structure of a radio frame used in embodiments of the present invention.
  • the type 1 frame structure can be applied to both full duplex Frequency Division Duplex (FDD) systems and half duplex FDD systems.
  • FDD Frequency Division Duplex
  • One subframe is defined as two consecutive slots, and the i-th subframe includes slots corresponding to 2i and 2i + 1. That is, a radio frame consists of 10 subframes.
  • the time taken to transmit one subframe is called a transmission time interval (TTI).
  • the slot includes a plurality of OFDM symbols or SC-FDMA symbols in the time domain and a plurality of resource blocks in the frequency domain.
  • One slot includes a plurality of orthogonal frequency division multiplexing (OFDM) symbols in the time domain. Since 3GPP LTE uses OFDMA in downlink, the OFDM symbol is for representing one symbol period. The OFDM symbol may be referred to as one SC-FDMA symbol or symbol period.
  • a resource block is a resource allocation unit and includes a plurality of consecutive subcarriers in one slot.
  • 10 subframes may be used simultaneously for downlink transmission and uplink transmission during each 10ms period. At this time, uplink and downlink transmission are separated in the frequency domain.
  • the terminal cannot simultaneously transmit and receive.
  • the structure of the radio frame described above is just one example, and the number of subframes included in the radio frame, the number of slots included in the subframe, and the number of OFDM symbols included in the slot may be variously changed.
  • the type 2 frame includes a special subframe consisting of three fields: a downlink pilot time slot (DwPTS), a guard period (GP), and an uplink pilot time slot (UpPTS).
  • DwPTS downlink pilot time slot
  • GP guard period
  • UpPTS uplink pilot time slot
  • the DwPTS is used for initial cell search, synchronization or channel estimation in the terminal.
  • UpPTS is used for channel estimation at the base station and synchronization of uplink transmission of the terminal.
  • the guard period is a period for removing interference generated in the uplink due to the multipath delay of the downlink signal between the uplink and the downlink.
  • Table 1 below shows the structure of the special frame (length of DwPTS / GP / UpPTS).
  • the configuration of a special frame (the length of DwPTS / GP / UpPTS) is provided by X (the number of additional SC-FDMA symbols and the upper layer parameter srs-UpPtsAdd) as shown in the following table. Otherwise, X is equal to 0), and a new configuration is added, and Special subframe configuration # 10 is newly added in the LTE Rel-14 system.
  • the UE adds two additional UpPTSs for special subframeconfigurations ⁇ 3, 4, 7, 8 ⁇ for general CP in downlink and special subframeconfigurations ⁇ 2, 3, 5, 6 ⁇ for extended CP in downlink. You may not expect SC-FDMA symbols to be set.
  • the UE has special subframeconfigurations ⁇ 1, 2, 3, 4, 6, 7, 8 ⁇ for general CP in downlink and special subframeconfigurations ⁇ 1, 2, 3, 5 for extended CP in downlink May not expect four additional UpPTS SC-FDMA symbols to be set.
  • the UE is not expected to be configured with 2 additional UpPTS SC-FDMA symbols for special subframeconfigurations ⁇ 3, 4, 7, 8 ⁇ for normal cyclic prefix in downlink and special subframeconfigurations ⁇ 2, 3, 5, 6 ⁇ for extended cyclic prefix in downlink and 4 additional UpPTS SC-FDMA symbols for special subframeconfigurations ⁇ 1, 2, 3, 4, 6, 7, 8 ⁇ for normal cyclic prefix in downlink and special subframeconfigurations ⁇ 1, 2, 3, 5, 6 ⁇ for extended cyclic prefix in downlink.
  • FIG. 3 is a diagram illustrating a resource grid for a downlink slot that can be used in embodiments of the present invention.
  • one downlink slot includes a plurality of OFDM symbols in the time domain.
  • one downlink slot includes seven OFDM symbols, and one resource block includes 12 subcarriers in a frequency domain, but is not limited thereto.
  • Each element on the resource grid is a resource element, and one resource block includes 12 ⁇ 7 resource elements.
  • the number NDL of resource blocks included in the downlink slot depends on the downlink transmission bandwidth.
  • FIG. 4 shows a structure of an uplink subframe that can be used in embodiments of the present invention.
  • an uplink subframe may be divided into a control region and a data region in the frequency domain.
  • the control region is allocated a PUCCH carrying uplink control information.
  • a PUSCH carrying user data is allocated.
  • one UE does not simultaneously transmit a PUCCH and a PUSCH.
  • the PUCCH for one UE is allocated an RB pair in a subframe. RBs belonging to the RB pair occupy different subcarriers in each of the two slots.
  • the RB pair assigned to this PUCCH is said to be frequency hopping at the slot boundary.
  • FIG. 5 shows a structure of a downlink subframe that can be used in embodiments of the present invention.
  • up to three OFDM symbols from the OFDM symbol index 0 in the first slot in the subframe are control regions to which control channels are allocated, and the remaining OFDM symbols are data regions to which the PDSCH is allocated. )to be.
  • a downlink control channel used in 3GPP LTE includes a Physical Control Format Indicator Channel (PCFICH), a PDCCH, and a Physical Hybrid-ARQ Indicator Channel (PHICH).
  • PCFICH Physical Control Format Indicator Channel
  • PDCCH Physical Hybrid-ARQ Indicator Channel
  • PHICH Physical Hybrid-ARQ Indicator Channel
  • the PCFICH is transmitted in the first OFDM symbol of a subframe and carries information about the number of OFDM symbols (ie, the size of the control region) used for transmission of control channels within the subframe.
  • the PHICH is a response channel for the uplink and carries an ACK (Acknowledgement) / NACK (Negative-Acknowledgement) signal for a hybrid automatic repeat request (HARQ).
  • Control information transmitted through the PDCCH is called downlink control information (DCI).
  • the downlink control information includes uplink resource allocation information, downlink resource allocation information or an uplink transmission (Tx) power control command for a certain terminal group.
  • MTC Massive Machine Type Communications
  • a new wireless access technology system has been proposed as a new wireless access technology that considers such enhanced mobile broadband communication, massive MTC, and ultra-reliable and low latency communication (URLLC).
  • the technology is referred to as New RAT or NR (New Radio) for convenience.
  • ⁇ and cyclic prefix information for each carrier bandwidth part may be signaled for each downlink (DL) or uplink (UL).
  • DL downlink
  • UL uplink
  • ⁇ and cyclic prefix information for a downlink carrier bandwidth part may be signaled through higher layer signaling DL-BWP-mu and DL-MWP-cp.
  • ⁇ and cyclic prefix information for an uplink carrier bandwidth part may be signaled through higher layer signaling UL-BWP-mu and UL-MWP-cp.
  • Downlink and uplink transmission consists of a frame of 10ms long.
  • the frame may be composed of 10 subframes of length 1ms. In this case, the number of consecutive OFDM symbols for each subframe is to be.
  • Each frame may consist of two equally sized half frames.
  • each half-frame may be configured of subframes 0-4 and subframes 5-9, respectively.
  • slots are in ascending order within one subframe. Numbered as in ascending order within a frame It may be numbered as follows. In this case, the number of consecutive OFDM symbols in one slot ( ) Can be determined according to the circulation translocation as shown in the table below. Start slot in one subframe ( ) Is the starting OFDM symbol () in the same subframe ) And time dimension. Table 4 shows the number of OFDM symbols per slot / frame / subframe for a normal cyclic prefix, and Table 5 shows slots / frame / for extended cyclic prefix. This indicates the number of OFDM symbols per subframe.
  • a self-contained slot structure may be applied as the slot structure as described above.
  • FIG. 6 is a diagram illustrating a self-contained slot structure applicable to the present invention.
  • the base station and the UE may sequentially perform DL transmission and UL transmission in one slot, and may transmit and receive DL data and transmit and receive UL ACK / NACK for the DL data in the one slot.
  • this structure reduces the time taken to retransmit data in the event of a data transmission error, thereby minimizing the delay of the final data transfer.
  • a time gap of a certain length is required for the base station and the UE to switch from the transmission mode to the reception mode or from the reception mode to the transmission mode.
  • some OFDM symbols at the time of switching from DL to UL in the independent slot structure may be set to a guard period (GP).
  • the independent slot structure includes both the DL control region and the UL control region.
  • the control regions may be selectively included in the independent slot structure.
  • the independent slot structure according to the present invention may include not only a case in which both the DL control region and the UL control region are included as shown in FIG. 6, but also a case in which only the DL control region or the UL control region is included.
  • a slot may have various slot formats.
  • the OFDM symbol of each slot may be classified into downlink (denoted 'D'), flexible (denoted 'X'), and uplink (denoted 'U').
  • the UE may assume that downlink transmission occurs only in 'D' and 'X' symbols. Similarly, in the uplink slot, the UE may assume that uplink transmission occurs only in the 'U' and 'X' symbols.
  • millimeter wave the short wavelength allows the installation of multiple antenna elements in the same area. That is, since the wavelength is 1 cm in the 30 GHz band, a total of 100 antenna elements can be installed in a 2-dimension array at 0.5 lambda intervals on a 5 * 5 cm panel. Accordingly, in millimeter wave (mmW), a plurality of antenna elements may be used to increase beamforming (BF) gain to increase coverage or to increase throughput.
  • BF beamforming
  • each antenna element may include a TXRU (Transceiver Unit) to enable transmission power and phase adjustment for each antenna element.
  • TXRU Transceiver Unit
  • each antenna element may perform independent beamforming for each frequency resource.
  • a hybrid BF having B TXRUs having a smaller number than Q antenna elements may be considered as an intermediate form between digital beamforming and analog beamforming.
  • the direction of the beam that can be transmitted at the same time may be limited to B or less.
  • the TXRU virtualization model represents the relationship between the output signal of the TXRU and the output signal of the antenna element.
  • FIG. 7 is a diagram illustrating how a TXRU is connected to a sub-array. In the case of FIG. 7, the antenna element is connected to only one TXRU.
  • FIG. 8 shows how TXRU is connected to all antenna elements.
  • the antenna element is connected to all TXRUs.
  • the antenna element requires a separate adder as shown in FIG. 8 to be connected to all TXRUs.
  • W represents the phase vector multiplied by an analog phase shifter.
  • W is a main parameter that determines the direction of analog beamforming.
  • the mapping between the CSI-RS antenna port and the TXRUs may be 1: 1 or 1: 1-to-many.
  • the beamforming focusing is difficult, but there is an advantage that the entire antenna configuration can be configured at a low cost.
  • analog beamforming refers to an operation of performing precoding (or combining) in the RF stage.
  • the baseband stage and the RF stage respectively perform precoding (or combining). This reduces the number of RF chains and the number of digital-to-analog (D / A) (or analog-to-digital) converters while providing near-digital beamforming performance.
  • the hybrid beamforming structure may be represented by N transceiver units (TXRUs) and M physical antennas.
  • TXRUs transceiver units
  • the digital beamforming for the L data layers to be transmitted by the transmitter may be represented by an N * L (N by L) matrix.
  • the converted N digital signals are converted into analog signals through TXRU, and analog beamforming is applied to the converted signals represented by an M * N (M by N) matrix.
  • FIG. 9 is a diagram illustrating a hybrid beamforming structure from a TXRU and a physical antenna perspective according to an example of the present invention.
  • the number of digital beams is L and the number of analog beams is N in FIG. 9.
  • the base station is designed to change the analog beamforming in units of symbols and considers a method for supporting more efficient beamforming for a terminal located in a specific region.
  • specific N TXRU and M RF antennas as one antenna panel as shown in FIG. 9, in the NR system according to the present invention, a plurality of antenna panels to which hybrid beamforming independent of each other can be applied are defined. It is also considered to adopt.
  • the analog beams advantageous for signal reception may be different for each terminal. Accordingly, in the NR system to which the present invention is applicable, the base station transmits a signal (at least a synchronization signal, system information, paging, etc.) by applying a different analog beam for each symbol in a specific subframe (SF) so that all terminals can receive the signal. Beam sweeping operations are being contemplated that allow for receiving opportunities.
  • FIG. 10 is a diagram briefly illustrating a beam sweeping operation of a synchronization signal and system information in a downlink (DL) transmission process according to an embodiment of the present invention.
  • a physical resource (or physical channel) through which system information of an NR system to which the present invention is applicable is transmitted in a broadcasting manner is referred to as a physical broadcast channel (xPBCH).
  • xPBCH physical broadcast channel
  • analog beams belonging to different antenna panels in one symbol may be transmitted simultaneously.
  • a configuration for measuring channels for analog beams is applied to transmit a reference signal (Reference signal,
  • Reference signal The introduction of beam reference signals (Beam RS, BRS), which is RS, is under discussion.
  • the BRS may be defined for a plurality of antenna ports, and each antenna port of the BRS may correspond to a single analog beam.
  • the synchronization signal or the xPBCH may be transmitted by applying all the analog beams in the analog beam group so that any terminal can receive well.
  • PUCCH physical uplink control channel
  • RS modulated signal for information
  • RS reference signal
  • TDM time division multiplexing
  • DFT discrete Fourier transform
  • the receiver receives the modulated signal for the UCI and RS.
  • the PUCCH transmission structure and reception operation for distinguishing with a relatively low complexity will be described in detail. Accordingly, the signal to which the DFT operation (or DFT precoding) is applied may be transmitted through some (continuous) subcarrier (s) of all subcarrier (s) in the OFDM symbol.
  • a slot consisting of a plurality of OFDM symbols is defined as a basic time unit for data scheduling, and acknowledgment / negative acknowledgment (ACK / NACK), which is whether data reception in a specific slot (decoding perspective) is successful or not;
  • PUCCH which is a physical channel for transmitting the ACK / NACK information, can be transmitted in a relatively short time period by TDM with the data channel as shown in FIG.
  • the UE may report the ACK / NACK information on the back OFDM symbol (s) in the same slot (in the time domain) to the base station through the PUCCH after the ACK / NACK determination on the DL data in a specific slot.
  • the PUCCH may include important UL control information such as channel state information (CSI) feedback and scheduling request (SR). Accordingly, it may be preferable that the PUCCH has a wide transmission area (or UL coverage). To this end, the UE should be able to perform PUCCH transmission with the highest (average) transmission power.
  • CSI channel state information
  • SR scheduling request
  • a limitation on transmission power may occur due to a nonlinearity problem of a power amplifier (PA).
  • PA Power amplifier
  • the UE is a method for allowing an amplitude variable range of a time-base transmission signal to be included in a range of an input signal that guarantees a linear characteristic of the PA. Should lower the average power of the signal. Therefore, it may be desirable to design the PUCCH signal to have a low PAPR characteristic so that the UE can perform PUCCH transmission with high (average) transmission power.
  • FIG. 11 is a diagram illustrating a method of configuring a PUCCH according to an embodiment of the present invention.
  • a receiver may express the transmission signal as if it is transmitted through a multipath having a different time delay. Therefore, when the UE transmits after mixing the UCI and RS in a specific OFDM symbol and applying DFT precoding as described above, there is no guard time between the modulation signal for the UCI and the RS. This can happen.
  • FIG. 12 is a diagram illustrating an operation of receiving a signal for each of a plurality of paths.
  • a modulation signal 8 for a PUCCH signal (e.g. 4 RS samples, data (e.g. UCI)) over a multipath of 4 channels with different time delays and channel gains of h1, h2, h3, h4.
  • the samples are combined by TDM method and 12-point DFT precoding is performed for each subcarrier mapping, 24-point IDFT (or FFT), parallel to serial, CP (Cyclic Prefix) insertion process).
  • the received signal for each path is shown. In this case, the final received signal may be expressed as the sum of the received signals for each path received through the multiple paths.
  • the receiving end modulates a signal for the data (e.g., UCI) Since RS and RS are not distinguished, complex reception techniques such as a rake receiver may be required.
  • the receiver when the UE combines the data and the RS in a TDM scheme before performing the DFT precoding for a transmission within a specific OFDM symbol and transmits the PUCCH by applying the DFT precoding, the receiver can distinguish the data and the RS relatively easily.
  • the PUCCH transmission structure and a reception scheme corresponding thereto will be described in detail.
  • UCI and RS are transmitted by TDM before DFT precoding in one OFDM symbol, as well as transmitting a PUSCH composed of one or two OFDM symbols.
  • UCI and RS may be considered when TDM is transmitted before DFT precoding in one OFDM symbol.
  • each proposed scheme is DFT when generating N-point DFT / IDFT-based OFDM symbol It can be extended to any wireless communication system that performs precoding.
  • a subject transmitting a signal is called a 'transmitter', and a subject receiving the signal is called a 'receiver'.
  • the transmitter may take M time-axis samples for the M-point DFT precoding.
  • the modulation signals for the RS may be arranged first on the time axis, and then the modulation signals for the data may be disposed, and then a copy of some of the rear signals among the modulation signals for the RS may be disposed.
  • the K value (or the ratio between M and K or the ratio between L1 and K) may be determined in a predetermined manner between the base station and the terminal, or the base station may select a higher layer signal (eg, RRC signaling) or a dynamic control signal ( Example: L1 / L2 signaling).
  • a higher layer signal eg, RRC signaling
  • a dynamic control signal Example: L1 / L2 signaling
  • the K value corresponding to each state is a CP length for an OFDM symbol and / or a DFT precoding. It may be interpreted differently depending on the number of destination transmission samples (ie M) and / or RS overhead (preassigned or set by the base station).
  • the terminal may make an appointment in advance based on the R value.
  • the K value can be estimated accordingly.
  • ceil (X) means the smallest integer value among integers greater than or equal to X.
  • the same operation can be applied even if RS is replaced with Data and Data is replaced with RS (that is, the modulation signals for the data are arranged first and then the modulation signals for the RS are placed and then the data is added to the data. Can be configured by placing a copy of some of the back signals of the modulated signals).
  • some signals at the rear of the RS may be copied and positioned at the rear before the M-point DFT precoding.
  • FIG. 13 is a diagram illustrating an operation of copying the last two symbols of RS and arranging them behind M samples in the configuration of FIG. 12 before DFT precoding.
  • the receiver may receive the same signal as the CP for the RS is transmitted together with the RS.
  • the receiver may receive the same signal as that with CP applied to the corresponding signal. Can be.
  • FIG. 14 is a diagram briefly showing the configuration of RS and Data for one OFDM symbol applicable to the present invention.
  • the RS of the RS including the front RS-A portion and the rear RS-B portion
  • the entire OFDM symbol can be constructed by placing a copy for -B after Data.
  • the CP for one OFDM symbol may include a copy of part or all of the RS-B.
  • the process of disposing the copy of the RS-B behind the OFDM symbol is performed at the DFT precoding stage as shown in FIG. 13 or in the time axis signal generated after the DFT precoding, subcarrier mapping, or N-point IDFT (IFFT). Can be performed.
  • Transmitter arranges RS and Data (e.g. UCI) in the form of TDM (i.e. FDM on virtual frequency) in front of DFT.
  • RS and Data e.g. UCI
  • TDM i.e. FDM on virtual frequency
  • RS and UCI may be arranged as, for example, (entire) RS / (entire) UCI / (partial) RS.
  • partial RS may correspond to the last part of the entire RS (that is, partial RS may be a copy of the last part of the entire RS).
  • the RS and the UCI may be arranged as another example, such as (entire) UCI / (entire) RS / (partial) UCI.
  • partial UCI may correspond to the last part of the entire UCI (that is, partial UCI may be a copy of the last part of the entire UCI)
  • the RS and the UCI may be arranged as another example, such as (partial) RS / (entire) UCI / (entire) RS.
  • partial RS may correspond to the front part of the entire RS (that is, partial RS may be a copy of the front part of the entire RS).
  • the RS and the UCI may be arranged as another example, such as (partial) UCI / (entire) RS / (entire) UCI.
  • partial UCI may correspond to the front part of the entire UCI (that is, the partial UCI may be a copy of the front part of the entire UCI)
  • the RS and UCI may be arranged as another example, such as (entire) UCI / (partial) RS / (entire) RS.
  • partial RS may correspond to the last part of the entire RS (that is, partial RS may be a copy of the last part of the entire RS).
  • the transmitter may operate to transmit a signal generated by performing an IFFT process on the output signal that has undergone the DFT process.
  • the signal transmission method as described above may be equally applied to UL data transmission, downlink control information (DCI) or DL data transmission, or sidelink control information (SCI) or SL (sidelink) data transmission as well as UCI transmission.
  • DCI downlink control information
  • SCI sidelink control information
  • SL sidelink
  • the transmitter / receiver in the signal transmission method is not limited to the terminal / base station, and according to the embodiment, the transmitter / receiver may be extended to the base station / terminal or the terminal / terminal.
  • FIG. 15 is a diagram illustrating a form in which samples in an N-point DFT period are down-sampled according to the example of FIG. 13.
  • the receiver when the receiver performs N-point DFT (FFT), Subcarrier de-mapping, and M-point IDFT after CP removal, the samples in the N-point DFT section of FIG. Likewise, it can be expressed in down-sampling form.
  • h1 'and h2' respectively indicate an effective channel gain in a narrow band in which a signal is transmitted.
  • the receiver estimates a channel within the time window 1 of FIG. 15, applies a DFT operation to the time window 2, and compensates the frequency axis channel values with the estimated channel on the frequency axis (eg, Equalizing).
  • the IDFT operation is applied again to reduce the time to the time axis to extract only the UCI.
  • the receiver when the terminal combines data and RS and then applies DFT precoding and transmits, the receiver applies (N-point DFT (FFT), Subcarrier de-mapping, and M-point IDFT operations for OFDM received symbols).
  • N-point DFT FFT
  • FFT Frequency domain filtering
  • IFFT N-point IDFT
  • the preceding time interval hereinafter referred to as 'time'
  • a signal having a CP applied to the RS is applied to the RS (without UCI interference), and channel estimation may be performed using a time axis (or frequency axis) operation.
  • 16 is a diagram schematically illustrating a configuration of performing channel estimation through an RS signal according to an embodiment of the present invention.
  • the receiver when performing channel estimation through the RS signal in the time interval 1, as shown in FIG. 16, the receiver zeros out values of remaining samples except for the samples in the time interval 1 among all samples in the received signal.
  • a (M-point or N-point) DFT operation we can obtain a signal in the form of multiplying the RS (DFT transformed) RS with the channel gain per frequency on the frequency axis.
  • the receiver may estimate a channel by applying a frequency axis channel estimation technique according to an implementation method of the receiver.
  • the receiver is applied to some signals behind the UCI and RS.
  • the signal may be received in a form in which the CP for the mixed signal is applied to the mixed signal for the copy.
  • 17 is a diagram schematically illustrating a configuration of performing channel estimation through an RS signal according to another embodiment of the present invention.
  • the receiver processes the values of the remaining samples except for the samples in the time interval 2 to 0 to extract UCI from the mixed signal, and applies a (M-point or N-point) DFT operation. Compensate the channel values with the channel estimated in time section 1 on the frequency axis in advance, and then apply the (M-point or N-point) IDFT operation to restore the time axis to correspond to a copy of some signals behind the RS. Samples can be removed.
  • the base station can extract the UCI from the mixed signal.
  • the receiver when the receiver performs channel estimation on the RS signal in the time interval 1, the receiver applies a DFT operation on the samples in the time interval 1 in the received signal to perform an RS (DFT transformed) on the frequency axis.
  • the signal can be obtained by multiplying the channel gain by frequency.
  • the receiver may estimate the channel by applying a frequency axis channel estimation technique according to the implementation method of the receiver.
  • the receiver converts the channel estimated in time interval 1 into a frequency axis signal by applying a DFT operation on the samples in the time interval 2 to extract UCI from the mixed signal.
  • a DFT operation on the samples in the time interval 2 to extract UCI from the mixed signal.
  • the above-described configuration can support the distinction between RS and data with a relatively easy implementation while minimizing constraints or signal overhead on RS and data transmission structures. For example, when adding a CP for RS in front of RS and a CP for Data in front of Data as a general inter symbol interference (ISI) removal scheme, additional CP overhead may occur.
  • ISI inter symbol interference
  • a modulation signal for RS after arranging CP (RS-CP) for RS on the time axis And then modulate signals for Data.
  • the K value (or the ratio between M and K or the ratio between L1 and K) may be determined in a predetermined manner between the base station and the terminal, or the base station may use a higher layer signal (eg, RRC signaling) or a dynamic control signal ( For example, it can be set through L1 / L2 signaling.
  • a higher layer signal eg, RRC signaling
  • a dynamic control signal For example, it can be set through L1 / L2 signaling.
  • FIG. 18 is a diagram briefly illustrating a configuration in which a receiver receives a signal according to the present invention.
  • the receiver is configured to include some samples in the time interval corresponding to the front RS-CP length included in the time interval (corresponding to or proportional to the RS length) in the received signal and the RS-CP length at the rear.
  • the signal generated as described above is a signal transmission interval (time interval 1) in which CP for RS and RS is applied, and a signal in which UCI and RS-CP are mixed with TDM.
  • a method similar to the aforementioned method may be applied to the channel estimation and data extraction method of the receiver.
  • the K value (or ratio between M and L) is determined in a predetermined manner between the base station and the terminal, or the base station selects a higher layer signal (eg RRC signaling) or a dynamic control signal (eg L1 / L2 signaling). Can be set via).
  • a higher layer signal eg RRC signaling
  • a dynamic control signal eg L1 / L2 signaling
  • FIG. 19 is a diagram briefly showing a time axis signal generated according to an example of the present invention.
  • 20 is a diagram illustrating a configuration in which RS and data are divided on a frequency axis according to an example of the present invention.
  • RS and Data may be composed of Odd comb resources and Even comb resources after DFT precoding, respectively, so that RS and Data may be distinguished from each other on the frequency axis.
  • the receiver may distinguish RS from data on the frequency axis, perform RS-based channel estimation first, and then demodulate data using the estimated channel.
  • the transmitter combines P ( ⁇ K) signals in L samples in a TDM scheme as described above at the M-point DFT precoding stage and repeats K times to configure M samples for DFT precoding. Can be. Subsequently, the transmitter may transmit each signal in the P signals in the form of one of K Comb resources on a frequency axis.
  • the low PAPR characteristic can be achieved while separating RS and data completely on the frequency axis.
  • 21 is a diagram briefly illustrating a signal transmission method of a terminal according to an embodiment of the present invention.
  • the terminal generates a time axis sample for a reference signal (RS) and data mapped to one symbol (S2110).
  • the time axis sample may be configured in the order of the first RS sample, data sample, second RS sample in the time axis direction.
  • the data sample may be an uplink control information (UCI) sample.
  • UCI uplink control information
  • various methods may be applied as a method for generating a time axis sample by the terminal as follows.
  • some samples included in the second RS sample may be applied to the first RS sample.
  • some samples included in the first RS sample may be applied to the second RS sample.
  • the RS sample may be a demodulation reference signal (DM-RS) or a phase tracking reference signal (PT-RS).
  • DM-RS demodulation reference signal
  • PT-RS phase tracking reference signal
  • the terminal transmits a signal generated by applying transform precoding to the generated time axis sample to the base station (S2120).
  • Discrete Fourier Transform (DFT) precoding for the generated time axis sample may be applied.
  • the base station may receive the signal through the following method.
  • the base station receives a signal from the terminal. Subsequently, the base station estimates a transmission channel by applying a Discrete Fourier Transform (DFT) operation to samples within a first time window among the received signals. The base station extracts a data sample by compensating a channel value for a sample in a second time window of the received signal using the estimated transmission channel, and obtains data information based on the extracted data sample.
  • DFT Discrete Fourier Transform
  • examples of the proposed scheme described above may also be regarded as a kind of proposed schemes as they may be included as one of the implementation methods of the present invention.
  • the above-described proposed schemes may be independently implemented, some proposed schemes may be implemented in a combination (or merge) form.
  • Information on whether the proposed methods are applied may be defined so that the base station informs the terminal through a predefined signal (eg, a physical layer signal or a higher layer signal). have.
  • FIG. 22 is a diagram illustrating a configuration of a terminal and a base station in which the proposed embodiment can be implemented.
  • the terminal and the base station illustrated in FIG. 22 operate to implement the above-described embodiments of the method for transmitting and receiving signals between the terminal and the base station.
  • a UE (UE) 1 may operate as a transmitting end in uplink and a receiving end in downlink.
  • the base station eNB or gNB 100 may operate as a receiver in uplink and as a transmitter in downlink.
  • the terminal and the base station may include transmitters 10 and 110 and receivers 20 and 120, respectively, to control transmission and reception of information, data and / or messages.
  • the antenna may include antennas 30 and 130 for transmitting and receiving messages.
  • the terminal and the base station may each include a processor (Processor 40, 140) for performing the above-described embodiments of the present invention and a memory (50, 150) that can temporarily or continuously store the processing of the processor, respectively. Can be.
  • a processor Processor 40, 140
  • a memory 50, 150
  • the terminal 1 configured as described above generates a time axis sample for a reference signal (RS) and data mapped to one symbol through the processor 40.
  • the time axis sample is configured in the order of the first RS sample, the data sample, and the second RS sample in the time axis direction.
  • the terminal 1 transmits a signal generated by applying transform precoding to the generated time axis sample to the base station 100 through the transmitter 10.
  • the base station 100 receives a signal from the terminal through the receiver 120. Subsequently, the base station 100 estimates a transmission channel by applying a Discrete Fourier Transform (DFT) operation on samples within the first time window among the received signals through the processor 140, and uses the estimated transmission channel. Data samples are extracted by compensating channel values for samples in a second time window of the received signals. Subsequently, the base station 100 obtains data information based on the extracted data sample through the processor 140.
  • DFT Discrete Fourier Transform
  • the transmitter and the receiver included in the terminal and the base station include a packet modulation and demodulation function, a high speed packet channel coding function, an orthogonal frequency division multiple access (OFDMA) packet scheduling, and a time division duplex (TDD) for data transmission. Packet scheduling and / or channel multiplexing may be performed.
  • the terminal and the base station of FIG. 22 may further include a low power radio frequency (RF) / intermediate frequency (IF) unit.
  • RF radio frequency
  • IF intermediate frequency
  • the terminal is a personal digital assistant (PDA), a cellular phone, a personal communication service (PCS) phone, a GSM (Global System for Mobile) phone, a WCDMA (Wideband CDMA) phone, an MBS.
  • PDA personal digital assistant
  • PCS personal communication service
  • GSM Global System for Mobile
  • WCDMA Wideband CDMA
  • MBS Multi Mode-Multi Band
  • a smart phone is a terminal that combines the advantages of a mobile communication terminal and a personal portable terminal, and may mean a terminal incorporating data communication functions such as schedule management, fax transmission and reception, which are functions of a personal mobile terminal, in a mobile communication terminal.
  • a multimode multiband terminal can be equipped with a multi-modem chip to operate in both portable Internet systems and other mobile communication systems (e.g., code division multiple access (CDMA) 2000 systems, wideband CDMA (WCDMA) systems, etc.). Speak the terminal.
  • CDMA code division multiple access
  • WCDMA wideband CDMA
  • Embodiments of the invention may be implemented through various means.
  • embodiments of the present invention may be implemented by hardware, firmware, software, or a combination thereof.
  • a method according to embodiments of the present invention may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), Field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors and the like can be implemented.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs Field programmable gate arrays
  • processors controllers, microcontrollers, microprocessors and the like can be implemented.
  • the method according to the embodiments of the present invention may be implemented in the form of a module, procedure, or function that performs the functions or operations described above.
  • software code may be stored in memory units 50 and 150 and driven by processors 40 and 140.
  • the memory unit may be located inside or outside the processor, and may exchange data with the processor by various known means.
  • Embodiments of the present invention can be applied to various wireless access systems.
  • various radio access systems include 3rd Generation Partnership Project (3GPP) or 3GPP2 systems.
  • 3GPP 3rd Generation Partnership Project
  • Embodiments of the present invention can be applied not only to the various wireless access systems, but also to all technical fields to which the various wireless access systems are applied.
  • the proposed method can be applied to mmWave communication system using ultra high frequency band.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé d'émission ou de réception d'un signal entre un terminal et une station de base dans un système de communication sans fil, et un dispositif le prenant en charge. Plus particulièrement, la présente invention concerne une description d'un procédé d'émission de signal spécifique qui peut être appliqué lorsque le terminal transmet des informations de commande de liaison montante et un signal de référence conjointement à la station de base.
PCT/KR2018/003431 2017-03-23 2018-03-23 Procédé d'émission ou de réception de signal entre un terminal et une station de base dans un système de communication sans fil, et dispositif le prenant en charge WO2018174633A2 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP18772023.0A EP3471323B1 (fr) 2017-03-23 2018-03-23 Procédé d'émission ou de réception de signal entre un terminal et une station de base dans un système de communication sans fil, et dispositif le prenant en charge
JP2019530413A JP6882479B2 (ja) 2017-03-23 2018-03-23 無線通信システムにおいて端末と基地局の間の信号を送受信する方法及びそれを支援する装置
US16/065,734 US11522651B2 (en) 2017-03-23 2018-03-23 Method and device for transmitting and receiving between user equipment and base station in wireless communication system
CN201880016214.4A CN110383742B (zh) 2017-03-23 2018-03-23 在无线通信系统中在用户设备和基站之间发送和接收信号的方法和装置
KR1020187013764A KR101944836B1 (ko) 2017-03-23 2018-03-23 무선 통신 시스템에서 단말과 기지국 간 신호를 송수신하는 방법 및 이를 지원하는 장치
KR1020197002531A KR102060072B1 (ko) 2017-03-23 2018-03-23 무선 통신 시스템에서 단말과 기지국 간 신호를 송수신하는 방법 및 이를 지원하는 장치
US17/994,891 US11882068B2 (en) 2017-03-23 2022-11-28 Method and device for transmitting and receiving between user equipment and base station in wireless communication system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201762475839P 2017-03-23 2017-03-23
US62/475,839 2017-03-23
US201762480550P 2017-04-03 2017-04-03
US62/480,550 2017-04-03

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/065,734 A-371-Of-International US11522651B2 (en) 2017-03-23 2018-03-23 Method and device for transmitting and receiving between user equipment and base station in wireless communication system
US17/994,891 Continuation US11882068B2 (en) 2017-03-23 2022-11-28 Method and device for transmitting and receiving between user equipment and base station in wireless communication system

Publications (2)

Publication Number Publication Date
WO2018174633A2 true WO2018174633A2 (fr) 2018-09-27
WO2018174633A3 WO2018174633A3 (fr) 2018-11-08

Family

ID=63585617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/003431 WO2018174633A2 (fr) 2017-03-23 2018-03-23 Procédé d'émission ou de réception de signal entre un terminal et une station de base dans un système de communication sans fil, et dispositif le prenant en charge

Country Status (6)

Country Link
US (2) US11522651B2 (fr)
EP (1) EP3471323B1 (fr)
JP (1) JP6882479B2 (fr)
KR (2) KR102060072B1 (fr)
CN (1) CN110383742B (fr)
WO (1) WO2018174633A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114073046A (zh) * 2019-06-24 2022-02-18 中兴通讯股份有限公司 时域数据中的参考信号序列

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018147692A1 (fr) * 2017-02-11 2018-08-16 엘지전자 주식회사 Procédé d'émission/réception de canal de commande de liaison montante physique entre un terminal et une station de base dans un système de communication sans fil et appareil le prenant en charge
US11516834B2 (en) * 2017-11-13 2022-11-29 Qualcomm Incorporated Uplink control information transmission
CN113015245B (zh) * 2019-12-20 2023-10-27 中国移动通信有限公司研究院 数据发送处理方法、数据接收处理方法及设备

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2424805B (en) 2005-03-30 2007-02-28 Toshiba Res Europ Ltd Efficient channel tracking in packet based OFDM systems
ES2427723T3 (es) 2006-12-22 2013-10-31 Fujitsu Limited Señales piloto de enlace ascendente basadas en Zadoff-Chu
US20090040919A1 (en) * 2007-08-09 2009-02-12 Tarik Muharemovic Transmission Using Nested OFDMA
US8724542B2 (en) * 2008-08-04 2014-05-13 Texas Instruments Incorporated Transmission using nested OFDMA
US8634385B2 (en) * 2008-08-14 2014-01-21 Samsung Electronics Co., Ltd. Method and apparatus for supporting multiple reference signals in OFDMA communication systems
KR101723412B1 (ko) 2009-07-17 2017-04-05 엘지전자 주식회사 하향링크 참조신호의 전송방법 및 장치
KR20110048405A (ko) * 2009-11-02 2011-05-11 주식회사 팬택 복조 기준 신호 매핑 방법, 전송방법 및 그를 이용하는 통신단말장치
CN102332965B (zh) * 2010-07-12 2014-03-12 大连海兰德维通信技术有限公司 基于传输分集模式的数据传输方法和系统
US8891556B2 (en) 2010-08-04 2014-11-18 Nec (China) Co., Ltd. Signal for transmission in single-carrier communication system
EP2666269B1 (fr) * 2011-01-20 2015-03-11 Telefonaktiebolaget LM Ericsson (PUBL) Récepteurs et procédés pour la determination de l'estimation du canal
US9313779B2 (en) 2012-07-27 2016-04-12 Intel Corporation Uplink control information transmission with large number of bits
KR101670158B1 (ko) 2015-01-26 2016-10-27 제주특별자치도(제주특별자치도해양수산연구원장) 양식어류용 먹이생물 자동공급장치
EP3541001B1 (fr) * 2015-02-06 2022-07-06 Samsung Electronics Co., Ltd. Procédé et appareil de commande de transmission d'informations de commande de liaison montante dans un système de communication sans fil fournissant des services à grande largeur de bande par l'intermédiaire d'une agrégation de porteuses
US10333738B2 (en) 2015-06-04 2019-06-25 Electronics And Telecommunications Research Institute Method and apparatus for receiving data and method for transmitting data in mobile communication system
EP3185496B1 (fr) 2015-12-21 2018-08-29 Mitsubishi Electric R&D Centre Europe B.V. Procédé et dispositif de formation d'un symbole mrof à diffusion dft comprenant des données et un pilote
US10708796B2 (en) * 2016-04-21 2020-07-07 Qualcomm Incorporated High doppler channel performance enhancement
CN110169176B (zh) * 2017-02-03 2024-01-09 Oppo广东移动通信有限公司 信息传输方法、装置和存储介质
CN110603775B (zh) * 2017-05-04 2022-10-25 苹果公司 新无线电(nr)物理上行链路结构和方案

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114073046A (zh) * 2019-06-24 2022-02-18 中兴通讯股份有限公司 时域数据中的参考信号序列
JP2022539042A (ja) * 2019-06-24 2022-09-07 中▲興▼通▲訊▼股▲ふぇん▼有限公司 時間ドメインデータ内の基準信号シーケンス

Also Published As

Publication number Publication date
WO2018174633A3 (fr) 2018-11-08
EP3471323A4 (fr) 2020-06-17
US20210203459A1 (en) 2021-07-01
KR102060072B1 (ko) 2020-02-11
JP6882479B2 (ja) 2021-06-02
KR20180135852A (ko) 2018-12-21
CN110383742A (zh) 2019-10-25
KR101944836B1 (ko) 2019-02-01
JP2020504931A (ja) 2020-02-13
CN110383742B (zh) 2022-02-01
KR20190011342A (ko) 2019-02-01
US11522651B2 (en) 2022-12-06
US20230163908A1 (en) 2023-05-25
EP3471323B1 (fr) 2023-09-27
EP3471323A2 (fr) 2019-04-17
US11882068B2 (en) 2024-01-23

Similar Documents

Publication Publication Date Title
WO2018199584A1 (fr) Procédé de réception d'un signal de référence de suivi de phase par un terminal dans un système de communication sans fil et dispositif correspondant
WO2018231030A1 (fr) Procédés d'émission et de réception de canal physique de commande de liaison montante entre un terminal et une station de base dans un système de communication sans fil, et appareils pour sa prise en charge
WO2019199143A1 (fr) Procédé d'acquisition de signal de données par un terminal dans un système de communication sans fil et appareil prenant en charge celui-ci
WO2018004246A1 (fr) Procédé d'émission/réception de signal de liaison montante entre une station de base et un terminal dans un système de communication sans fil, et dispositif prenant en charge ce procédé
WO2017138772A2 (fr) Procédé d'émission et de réception de signaux entre une station de base et un terminal dans un système de communication sans fil, et dispositif le prenant en charge
WO2018026181A1 (fr) Procédé d'émission et de réception de signaux par un terminal et une station de base dans un système de communication sans fil, système et dispositif le prenant en charge
WO2018174634A1 (fr) Procédé permettant à un terminal de transmettre des informations d'accusé de réception dans un système de communication sans fil, et dispositif réalisant le procédé
WO2018182248A1 (fr) Procédé permettant à un terminal de recevoir un signal de référence de suivi de phase dans un système de communication sans fil, et dispositif prenant en charge ledit procédé
WO2017131470A1 (fr) Procédé pour recevoir un signal de liaison descendante, dans un système de communication sans fil prenant en charge une bande sans licence, et dispositif le prenant en charge
WO2017135773A1 (fr) Procédé destiné à émettre un signal de référence de sondage dans un système de communication sans fil et appareil destiné à la prise en charge associé
WO2018084660A1 (fr) Procédé d'émission/réception de canal de commande de liaison montante physique entre un terminal et une station de base dans un système de communication sans fil et dispositif prenant en charge ledit procédé
WO2018151533A1 (fr) Procédé de transmission / réception de données dans un système de communication sans fil et appareil correspondant
WO2018159999A1 (fr) Procédé de transmission/réception de signal entre un terminal et une station de base dans un système de communication sans fil, et dispositif prenant en charge ce procédé
WO2018021865A1 (fr) Procédé de rapport d'informations d'état de canal par un terminal dans un système de communication sans fil et dispositif prenant en charge ce dernier
WO2020204486A1 (fr) Procédé de transmission d'informations de commande de liaison descendante et station de base, procédé de réception d'informations de commande de liaison descendante, équipement d'utilisateur et support de stockage
WO2018030744A1 (fr) Procédé d'émission et de réception d'un canal de liaison montante dans un système de communication sans fil prenant en charge une bande sans licence et dispositifs prenant en charge ledit procédé
WO2018147700A1 (fr) Procédé pour un terminal et une station de base, comprenant une pluralité de points d'émission et de réception (trp) pour émettre/recevoir des signaux dans un système de communications sans fil, et dispositif associé
WO2018151565A1 (fr) Procédé d'émission/réception de signaux entre terminal et station de base dans un système de communication sans fil prenant en charge l'internet des objets en bande étroite, et dispositif le prenant en charge
WO2014185673A1 (fr) Procédé de communications prenant en considération le type de support et appareil associé
WO2018151564A1 (fr) Procédé d'émission/réception de signal entre un terminal et une station de base dans un système de communication sans fil prenant en charge l'internet des objets à bande étroite, et dispositif le prenant en charge
WO2013151396A1 (fr) Procédé et appareil d'agrégation de porteuses dans des systèmes de communication sans fil
WO2017126936A1 (fr) Procédé d'émission et de réception de signal de liaison montante et appareil prenant en charge le procédé dans un système de communication sans fil prenant en charge une bande sans licence
WO2011019242A2 (fr) Procédé et dispositif pour transmettre un signal de référence en liaison descendante dans un système de communication sans fil acceptant plusieurs antennes
WO2017196055A2 (fr) Procédé de transmission de signal de référence de sondage dans un système de communication sans fil prenant en charge une bande sans licence, et appareil l'exécutant
WO2018128495A1 (fr) Procédé et dispositif d'émission ou de réception d'un signal sans fil dans un système de communication sans fil

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 20187013764

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 1020187013764

Country of ref document: KR

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18772023

Country of ref document: EP

Kind code of ref document: A2

ENP Entry into the national phase

Ref document number: 2018772023

Country of ref document: EP

Effective date: 20190110

ENP Entry into the national phase

Ref document number: 2019530413

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE